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Codebook for NHGIS data file 'nhgis0002_ts_geog2010_zcta'
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Contents
    - Data Summary
    - Data Dictionary
    - Geographic Integration Methods
    - Source Data
    - Citation and Use
 
Detailed notes on time series design and comparability are available at: 
    https://www.nhgis.org/sites/www.nhgis.org/files/nhgis_time_series_tables.pdf 
 
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Data Summary
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Time series layout:     Time varies by column
Geographic level:       5-Digit ZIP Code Tabulation Area
Geographic integration: Standardized to 2010
Data measurement years: 1990, 2000, 2010
 
Tables:
 
1. Total Population
   Years: 1990, 2000, 2010
   Code:  CL8
 
2. Persons by Urban/Rural Status [4]
   Years: 1990, 2000, 2010
   Code:  CL9
 
3. Persons by Sex [2]
   Years: 1990, 2000, 2010
   Code:  CM0
 
4. Persons by Race [7*]
   Years: 1990, 2000, 2010
   Code:  CM1
 
5. Persons Under 18 Years in Households
   Years: 1990, 2000, 2010
   Code:  CR0
 
6. Persons 65 Years and Over in Households
   Years: 1990, 2000, 2010
   Code:  CR2
 
7. Total Households
   Years: 1990, 2000, 2010
   Code:  CM4
 
8. Total Families
   Years: 1990, 2000, 2010
   Code:  CM5
 
9. Total Housing Units
   Years: 1990, 2000, 2010
   Code:  CM7
 
10. Housing Units by Urban/Rural Status [4]
    Years: 1990, 2000, 2010
    Code:  CM8
 
11. Housing Units by Occupancy Status [2]
    Years: 1990, 2000, 2010
    Code:  CM9
 
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Data Dictionary
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Context Fields 
        GISJOIN:     GIS Join Match Code
        GEOGYEAR:    Geography Year
        ZCTAA:       5-Digit ZIP Code Tabulation Area [2000-Present] Code
 
Table 1: (CL8) Total Population
    Time series AA: Persons: Total
        CL8AA1990:   1990: Persons: Total
        CL8AA1990L:  Lower bound: 1990: Persons: Total
        CL8AA1990U:  Upper bound: 1990: Persons: Total
        CL8AA2000:   2000: Persons: Total
        CL8AA2000L:  Lower bound: 2000: Persons: Total
        CL8AA2000U:  Upper bound: 2000: Persons: Total
        CL8AA2010:   2010: Persons: Total
 
Table 2: (CL9) Persons by Urban/Rural Status [4]
    Time series AA: Persons: Urban
        CL9AA1990:   1990: Persons: Urban
        CL9AA1990L:  Lower bound: 1990: Persons: Urban
        CL9AA1990U:  Upper bound: 1990: Persons: Urban
        CL9AA2000:   2000: Persons: Urban
        CL9AA2000L:  Lower bound: 2000: Persons: Urban
        CL9AA2000U:  Upper bound: 2000: Persons: Urban
        CL9AA2010:   2010: Persons: Urban
    Time series AB: Persons: Urban--Inside urbanized areas
        CL9AB1990:   1990: Persons: Urban--Inside urbanized areas
        CL9AB1990L:  Lower bound: 1990: Persons: Urban--Inside urbanized areas
        CL9AB1990U:  Upper bound: 1990: Persons: Urban--Inside urbanized areas
        CL9AB2000:   2000: Persons: Urban--Inside urbanized areas
        CL9AB2000L:  Lower bound: 2000: Persons: Urban--Inside urbanized areas
        CL9AB2000U:  Upper bound: 2000: Persons: Urban--Inside urbanized areas
        CL9AB2010:   2010: Persons: Urban--Inside urbanized areas
    Time series AC: Persons: Urban--Outside urbanized areas (in urban clusters)
        CL9AC1990:   1990: Persons: Urban--Outside urbanized areas (in urban clusters)
        CL9AC1990L:  Lower bound: 1990: Persons: Urban--Outside urbanized areas (in urban clusters)
        CL9AC1990U:  Upper bound: 1990: Persons: Urban--Outside urbanized areas (in urban clusters)
        CL9AC2000:   2000: Persons: Urban--Outside urbanized areas (in urban clusters)
        CL9AC2000L:  Lower bound: 2000: Persons: Urban--Outside urbanized areas (in urban clusters)
        CL9AC2000U:  Upper bound: 2000: Persons: Urban--Outside urbanized areas (in urban clusters)
        CL9AC2010:   2010: Persons: Urban--Outside urbanized areas (in urban clusters)
    Time series AD: Persons: Rural
        CL9AD1990:   1990: Persons: Rural
        CL9AD1990L:  Lower bound: 1990: Persons: Rural
        CL9AD1990U:  Upper bound: 1990: Persons: Rural
        CL9AD2000:   2000: Persons: Rural
        CL9AD2000L:  Lower bound: 2000: Persons: Rural
        CL9AD2000U:  Upper bound: 2000: Persons: Rural
        CL9AD2010:   2010: Persons: Rural
 
Table 3: (CM0) Persons by Sex [2]
    Time series AA: Persons: Male
        CM0AA1990:   1990: Persons: Male
        CM0AA1990L:  Lower bound: 1990: Persons: Male
        CM0AA1990U:  Upper bound: 1990: Persons: Male
        CM0AA2000:   2000: Persons: Male
        CM0AA2000L:  Lower bound: 2000: Persons: Male
        CM0AA2000U:  Upper bound: 2000: Persons: Male
        CM0AA2010:   2010: Persons: Male
    Time series AB: Persons: Female
        CM0AB1990:   1990: Persons: Female
        CM0AB1990L:  Lower bound: 1990: Persons: Female
        CM0AB1990U:  Upper bound: 1990: Persons: Female
        CM0AB2000:   2000: Persons: Female
        CM0AB2000L:  Lower bound: 2000: Persons: Female
        CM0AB2000U:  Upper bound: 2000: Persons: Female
        CM0AB2010:   2010: Persons: Female
 
Table 4: (CM1) Persons by Race [7*]
    Time series AA: Persons: White (single race)
        CM1AA1990:   1990: Persons: White (single race)
        CM1AA1990L:  Lower bound: 1990: Persons: White (single race)
        CM1AA1990U:  Upper bound: 1990: Persons: White (single race)
        CM1AA2000:   2000: Persons: White (single race)
        CM1AA2000L:  Lower bound: 2000: Persons: White (single race)
        CM1AA2000U:  Upper bound: 2000: Persons: White (single race)
        CM1AA2010:   2010: Persons: White (single race)
    Time series AB: Persons: Black or African American (single race)
        CM1AB1990:   1990: Persons: Black or African American (single race)
        CM1AB1990L:  Lower bound: 1990: Persons: Black or African American (single race)
        CM1AB1990U:  Upper bound: 1990: Persons: Black or African American (single race)
        CM1AB2000:   2000: Persons: Black or African American (single race)
        CM1AB2000L:  Lower bound: 2000: Persons: Black or African American (single race)
        CM1AB2000U:  Upper bound: 2000: Persons: Black or African American (single race)
        CM1AB2010:   2010: Persons: Black or African American (single race)
    Time series AC: Persons: American Indian and Alaska Native (single race)
        CM1AC1990:   1990: Persons: American Indian and Alaska Native (single race)
        CM1AC1990L:  Lower bound: 1990: Persons: American Indian and Alaska Native (single race)
        CM1AC1990U:  Upper bound: 1990: Persons: American Indian and Alaska Native (single race)
        CM1AC2000:   2000: Persons: American Indian and Alaska Native (single race)
        CM1AC2000L:  Lower bound: 2000: Persons: American Indian and Alaska Native (single race)
        CM1AC2000U:  Upper bound: 2000: Persons: American Indian and Alaska Native (single race)
        CM1AC2010:   2010: Persons: American Indian and Alaska Native (single race)
    Time series AD: Persons: Asian (single race)
        CM1AD1990:   1990: Persons: Asian (single race)
        CM1AD1990L:  Lower bound: 1990: Persons: Asian (single race)
        CM1AD1990U:  Upper bound: 1990: Persons: Asian (single race)
        CM1AD2000:   2000: Persons: Asian (single race)
        CM1AD2000L:  Lower bound: 2000: Persons: Asian (single race)
        CM1AD2000U:  Upper bound: 2000: Persons: Asian (single race)
        CM1AD2010:   2010: Persons: Asian (single race)
    Time series AE: Persons: Native Hawaiian and Other Pacific Islander (single race)
        CM1AE1990:   1990: Persons: Native Hawaiian and Other Pacific Islander (single race)
        CM1AE1990L:  Lower bound: 1990: Persons: Native Hawaiian and Other Pacific Islander (single race)
        CM1AE1990U:  Upper bound: 1990: Persons: Native Hawaiian and Other Pacific Islander (single race)
        CM1AE2000:   2000: Persons: Native Hawaiian and Other Pacific Islander (single race)
        CM1AE2000L:  Lower bound: 2000: Persons: Native Hawaiian and Other Pacific Islander (single race)
        CM1AE2000U:  Upper bound: 2000: Persons: Native Hawaiian and Other Pacific Islander (single race)
        CM1AE2010:   2010: Persons: Native Hawaiian and Other Pacific Islander (single race)
    Time series AF: Persons: Some Other Race (single race)
        CM1AF1990:   1990: Persons: Some Other Race (single race)
        CM1AF1990L:  Lower bound: 1990: Persons: Some Other Race (single race)
        CM1AF1990U:  Upper bound: 1990: Persons: Some Other Race (single race)
        CM1AF2000:   2000: Persons: Some Other Race (single race)
        CM1AF2000L:  Lower bound: 2000: Persons: Some Other Race (single race)
        CM1AF2000U:  Upper bound: 2000: Persons: Some Other Race (single race)
        CM1AF2010:   2010: Persons: Some Other Race (single race)
    Time series AG: Persons: Two or More Races
        CM1AG1990:   1990: Persons: Two or More Races
        CM1AG2000:   2000: Persons: Two or More Races
        CM1AG2000L:  Lower bound: 2000: Persons: Two or More Races
        CM1AG2000U:  Upper bound: 2000: Persons: Two or More Races
        CM1AG2010:   2010: Persons: Two or More Races
 
Table 5: (CR0) Persons Under 18 Years in Households
    Time series AA: Persons: In households ~ Under 18 years
        CR0AA1990:   1990: Persons: In households ~ Under 18 years
        CR0AA1990L:  Lower bound: 1990: Persons: In households ~ Under 18 years
        CR0AA1990U:  Upper bound: 1990: Persons: In households ~ Under 18 years
        CR0AA2000:   2000: Persons: In households ~ Under 18 years
        CR0AA2000L:  Lower bound: 2000: Persons: In households ~ Under 18 years
        CR0AA2000U:  Upper bound: 2000: Persons: In households ~ Under 18 years
        CR0AA2010:   2010: Persons: In households ~ Under 18 years
 
Table 6: (CR2) Persons 65 Years and Over in Households
    Time series AA: Persons: In households ~ 65 years and over
        CR2AA1990:   1990: Persons: In households ~ 65 years and over
        CR2AA1990L:  Lower bound: 1990: Persons: In households ~ 65 years and over
        CR2AA1990U:  Upper bound: 1990: Persons: In households ~ 65 years and over
        CR2AA2000:   2000: Persons: In households ~ 65 years and over
        CR2AA2000L:  Lower bound: 2000: Persons: In households ~ 65 years and over
        CR2AA2000U:  Upper bound: 2000: Persons: In households ~ 65 years and over
        CR2AA2010:   2010: Persons: In households ~ 65 years and over
 
Table 7: (CM4) Total Households
    Time series AA: Households: Total
        CM4AA1990:   1990: Households: Total
        CM4AA1990L:  Lower bound: 1990: Households: Total
        CM4AA1990U:  Upper bound: 1990: Households: Total
        CM4AA2000:   2000: Households: Total
        CM4AA2000L:  Lower bound: 2000: Households: Total
        CM4AA2000U:  Upper bound: 2000: Households: Total
        CM4AA2010:   2010: Households: Total
 
Table 8: (CM5) Total Families
    Time series AA: Families: Total
        CM5AA1990:   1990: Families: Total
        CM5AA1990L:  Lower bound: 1990: Families: Total
        CM5AA1990U:  Upper bound: 1990: Families: Total
        CM5AA2000:   2000: Families: Total
        CM5AA2000L:  Lower bound: 2000: Families: Total
        CM5AA2000U:  Upper bound: 2000: Families: Total
        CM5AA2010:   2010: Families: Total
 
Table 9: (CM7) Total Housing Units
    Time series AA: Housing units: Total
        CM7AA1990:   1990: Housing units: Total
        CM7AA1990L:  Lower bound: 1990: Housing units: Total
        CM7AA1990U:  Upper bound: 1990: Housing units: Total
        CM7AA2000:   2000: Housing units: Total
        CM7AA2000L:  Lower bound: 2000: Housing units: Total
        CM7AA2000U:  Upper bound: 2000: Housing units: Total
        CM7AA2010:   2010: Housing units: Total
 
Table 10: (CM8) Housing Units by Urban/Rural Status [4]
    Time series AA: Housing units: Urban
        CM8AA1990:   1990: Housing units: Urban
        CM8AA1990L:  Lower bound: 1990: Housing units: Urban
        CM8AA1990U:  Upper bound: 1990: Housing units: Urban
        CM8AA2000:   2000: Housing units: Urban
        CM8AA2000L:  Lower bound: 2000: Housing units: Urban
        CM8AA2000U:  Upper bound: 2000: Housing units: Urban
        CM8AA2010:   2010: Housing units: Urban
    Time series AB: Housing units: Urban--Inside urbanized areas
        CM8AB1990:   1990: Housing units: Urban--Inside urbanized areas
        CM8AB1990L:  Lower bound: 1990: Housing units: Urban--Inside urbanized areas
        CM8AB1990U:  Upper bound: 1990: Housing units: Urban--Inside urbanized areas
        CM8AB2000:   2000: Housing units: Urban--Inside urbanized areas
        CM8AB2000L:  Lower bound: 2000: Housing units: Urban--Inside urbanized areas
        CM8AB2000U:  Upper bound: 2000: Housing units: Urban--Inside urbanized areas
        CM8AB2010:   2010: Housing units: Urban--Inside urbanized areas
    Time series AC: Housing units: Urban--Outside urbanized areas (in urban clusters)
        CM8AC1990:   1990: Housing units: Urban--Outside urbanized areas (in urban clusters)
        CM8AC1990L:  Lower bound: 1990: Housing units: Urban--Outside urbanized areas (in urban clusters)
        CM8AC1990U:  Upper bound: 1990: Housing units: Urban--Outside urbanized areas (in urban clusters)
        CM8AC2000:   2000: Housing units: Urban--Outside urbanized areas (in urban clusters)
        CM8AC2000L:  Lower bound: 2000: Housing units: Urban--Outside urbanized areas (in urban clusters)
        CM8AC2000U:  Upper bound: 2000: Housing units: Urban--Outside urbanized areas (in urban clusters)
        CM8AC2010:   2010: Housing units: Urban--Outside urbanized areas (in urban clusters)
    Time series AD: Housing units: Rural
        CM8AD1990:   1990: Housing units: Rural
        CM8AD1990L:  Lower bound: 1990: Housing units: Rural
        CM8AD1990U:  Upper bound: 1990: Housing units: Rural
        CM8AD2000:   2000: Housing units: Rural
        CM8AD2000L:  Lower bound: 2000: Housing units: Rural
        CM8AD2000U:  Upper bound: 2000: Housing units: Rural
        CM8AD2010:   2010: Housing units: Rural
 
Table 11: (CM9) Housing Units by Occupancy Status [2]
    Time series AA: Housing units: Occupied
        CM9AA1990:   1990: Housing units: Occupied
        CM9AA1990L:  Lower bound: 1990: Housing units: Occupied
        CM9AA1990U:  Upper bound: 1990: Housing units: Occupied
        CM9AA2000:   2000: Housing units: Occupied
        CM9AA2000L:  Lower bound: 2000: Housing units: Occupied
        CM9AA2000U:  Upper bound: 2000: Housing units: Occupied
        CM9AA2010:   2010: Housing units: Occupied
    Time series AB: Housing units: Vacant
        CM9AB1990:   1990: Housing units: Vacant
        CM9AB1990L:  Lower bound: 1990: Housing units: Vacant
        CM9AB1990U:  Upper bound: 1990: Housing units: Vacant
        CM9AB2000:   2000: Housing units: Vacant
        CM9AB2000L:  Lower bound: 2000: Housing units: Vacant
        CM9AB2000U:  Upper bound: 2000: Housing units: Vacant
        CM9AB2010:   2010: Housing units: Vacant
 
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Geographic Integration Methods
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1990 Block Data Standardized to 2010 Geography:

    NHGIS standardizes the 1990 data in these time series tables to 2010 census
    geography in two steps, first allocating census counts from 1990 census
    blocks to 2010 census blocks and then summing the reallocated 1990 counts
    for all 2010 blocks that lie within each target 2010 unit. In cases where a
    1990 block may intersect multiple 2010 units, NHGIS applies interpolation to
    estimate how 1990 block characteristics are distributed among the
    intersecting 2010 blocks, primarily using the population and housing
    densities of 2000 and 2010 blocks to model the distribution of 1990
    characteristics within 1990 blocks.
    
    For details on the interpolation model, see:
    https://www.nhgis.org/documentation/time-series/1990-blocks-to-2010-geog

2000 Block Data Standardized to 2010 Geography:

    NHGIS standardizes the 2000 data in these time series tables to 2010 census
    geography in two steps, first allocating census counts from 2000 census
    blocks to 2010 census blocks and then summing the reallocated 2000 counts
    for all 2010 blocks that lie within each target 2010 unit. Where a 2000
    block intersects multiple 2010 blocks, NHGIS applies areal interpolation to
    estimate how the 2000 block characteristics are distributed among the
    intersecting 2010 blocks.
    
    In addition to the 2000 block data drawn from 2000 Census Summary File 1
    (NHGIS dataset 2000_SF1b), NHGIS uses information from three ancillary
    sources to refine the interpolation model:
    
    * 2010 census block population and housing unit counts from 2010 Census
    Summary File 1 (NHGIS dataset 2010_SF1a)
    
    * Locations of residential roads from the U.S. Census Bureau's 2010
    TIGER/Line Shapefiles
    
    * Extents of developed land, which we define as 30-meter square cells in the
    2001 National Land Cover Database (NLCD 2001) (2011 Edition) with at least
    5% of their area covered by impervious surface.
    
    For details on the interpolation model, see:
    https://www.nhgis.org/documentation/time-series/2000-blocks-to-2010-geog

2010 Standardized Data:

    For time series tables that are standardized to 2010 census geography, NHGIS
    draws the 2010 data directly from 2010 Census Summary Files without any
    estimation. The only adjustment NHGIS may make to the 2010 source data is,
    for some time series, to sum source counts together to compute larger
    subtotals.

Complete documentation on time series integration methods is available at:
    https://www.nhgis.org/documentation/time-series
 
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Source Data
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Additional documentation on NHGIS data sources is available at:
    https://www.nhgis.org/documentation/tabular-data

Table 1: (CL8) Total Population
 
    Time series AA: Persons: Total
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP1. Persons
                    Universe: Persons
                        Variable: [ET1001] Total
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP001A. Total Population
                    Universe: Persons
                        Variable: [FXS001] Total
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P1. Total Population
                    Universe: Total population
                        Variable: [H7V001] Total
 
 
Table 2: (CL9) Persons by Urban/Rural Status [4]
 
    Time series AA: Persons: Urban
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP4. Urban and Rural
                    Universe: Persons
                        Variable: [EUW001] Urban: Inside urbanized area
                        Variable: [EUW002] Urban: Outside urbanized area
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP002A. Population by Urban and Rural
                    Universe: Persons
                        Variable: [FXT001] Urban
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P2. Urban and Rural
                    Universe: Total population
                        Variable: [H7W002] Urban
 
    Time series AB: Persons: Urban--Inside urbanized areas
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP4. Urban and Rural
                    Universe: Persons
                        Variable: [EUW001] Urban: Inside urbanized area
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP002B. Urban Population by Type of Urban Area
                    Universe: Urban Persons
                        Variable: [FXU001] Inside urbanized areas
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P2. Urban and Rural
                    Universe: Total population
                        Variable: [H7W003] Urban: Inside urbanized areas
 
    Time series AC: Persons: Urban--Outside urbanized areas (in urban clusters)
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP4. Urban and Rural
                    Universe: Persons
                        Variable: [EUW002] Urban: Outside urbanized area
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP002B. Urban Population by Type of Urban Area
                    Universe: Urban Persons
                        Variable: [FXU002] Inside urban clusters
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P2. Urban and Rural
                    Universe: Total population
                        Variable: [H7W004] Urban: Inside urban clusters
 
    Time series AD: Persons: Rural
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP4. Urban and Rural
                    Universe: Persons
                        Variable: [EUW003] Rural
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP002A. Population by Urban and Rural
                    Universe: Persons
                        Variable: [FXT002] Rural
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P2. Urban and Rural
                    Universe: Total population
                        Variable: [H7W005] Rural
 
 
Table 3: (CM0) Persons by Sex [2]
 
    Time series AA: Persons: Male
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP5. Sex
                    Universe: Persons
                        Variable: [EUX001] Male
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP012A. Population by Sex
                    Universe: Persons
                        Variable: [FYL001] Male
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P12. Sex by Age
                    Universe: Total population
                        Variable: [H76002] Male
 
    Time series AB: Persons: Female
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP5. Sex
                    Universe: Persons
                        Variable: [EUX002] Female
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP012A. Population by Sex
                    Universe: Persons
                        Variable: [FYL002] Female
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P12. Sex by Age
                    Universe: Total population
                        Variable: [H76026] Female
 
 
Table 4: (CM1) Persons by Race [7*]
 
    Time series AA: Persons: White (single race)
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP6. Race
                    Universe: Persons
                        Variable: [EUY001] White
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP007A. Population by Race
                    Universe: Persons
                        Variable: [FYE001] White alone
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P3. Race
                    Universe: Total population
                        Variable: [H7X002] White alone
 
    Time series AB: Persons: Black or African American (single race)
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP6. Race
                    Universe: Persons
                        Variable: [EUY002] Black
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP007A. Population by Race
                    Universe: Persons
                        Variable: [FYE002] Black or African American alone
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P3. Race
                    Universe: Total population
                        Variable: [H7X003] Black or African American alone
 
    Time series AC: Persons: American Indian and Alaska Native (single race)
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP6. Race
                    Universe: Persons
                        Variable: [EUY003] American Indian, Eskimo, or Aleut
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP007A. Population by Race
                    Universe: Persons
                        Variable: [FYE003] American Indian and Alaska Native alone
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P3. Race
                    Universe: Total population
                        Variable: [H7X004] American Indian and Alaska Native alone
 
    Time series AD: Persons: Asian (single race)
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP7. Race
                    Universe: Persons
                        Variable: [EUZ006] Asian or Pacific Islander (600-699, 976-985): Asian (600-652, 976, 977, 979-982, 985): Chinese (605-607, 976)
                        Variable: [EUZ007] Asian or Pacific Islander (600-699, 976-985): Asian (600-652, 976, 977, 979-982, 985): Filipino (608, 977)
                        Variable: [EUZ008] Asian or Pacific Islander (600-699, 976-985): Asian (600-652, 976, 977, 979-982, 985): Japanese (611, 981)
                        Variable: [EUZ009] Asian or Pacific Islander (600-699, 976-985): Asian (600-652, 976, 977, 979-982, 985): Asian Indian (600, 982)
                        Variable: [EUZ010] Asian or Pacific Islander (600-699, 976-985): Asian (600-652, 976, 977, 979-982, 985): Korean (612, 979)
                        Variable: [EUZ011] Asian or Pacific Islander (600-699, 976-985): Asian (600-652, 976, 977, 979-982, 985): Vietnamese (619, 980)
                        Variable: [EUZ012] Asian or Pacific Islander (600-699, 976-985): Asian (600-652, 976, 977, 979-982, 985): Cambodian (604)
                        Variable: [EUZ013] Asian or Pacific Islander (600-699, 976-985): Asian (600-652, 976, 977, 979-982, 985): Hmong (609)
                        Variable: [EUZ014] Asian or Pacific Islander (600-699, 976-985): Asian (600-652, 976, 977, 979-982, 985): Laotian (613)
                        Variable: [EUZ015] Asian or Pacific Islander (600-699, 976-985): Asian (600-652, 976, 977, 979-982, 985): Thai (618)
                        Variable: [EUZ016] Asian or Pacific Islander (600-699, 976-985): Asian (600-652, 976, 977, 979-982, 985): Other Asian (601-603, 610, 614-617, 620-652, 985)
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP007A. Population by Race
                    Universe: Persons
                        Variable: [FYE004] Asian alone
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P3. Race
                    Universe: Total population
                        Variable: [H7X005] Asian alone
 
    Time series AE: Persons: Native Hawaiian and Other Pacific Islander (single race)
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP7. Race
                    Universe: Persons
                        Variable: [EUZ017] Asian or Pacific Islander (600-699, 976-985): Pacific Islander (653-699, 978, 983, 984): Polynesian (653-659, 978, 983): Hawaiian (653, 654, 978)
                        Variable: [EUZ018] Asian or Pacific Islander (600-699, 976-985): Pacific Islander (653-699, 978, 983, 984): Polynesian (653-659, 978, 983): Samoan (655, 983)
                        Variable: [EUZ019] Asian or Pacific Islander (600-699, 976-985): Pacific Islander (653-699, 978, 983, 984): Polynesian (653-659, 978, 983): Tongan (657)
                        Variable: [EUZ020] Asian or Pacific Islander (600-699, 976-985): Pacific Islander (653-699, 978, 983, 984): Polynesian (653-659, 978, 983): Other Polynesian (656, 658, 659)
                        Variable: [EUZ021] Asian or Pacific Islander (600-699, 976-985): Pacific Islander (653-699, 978, 983, 984): Micronesian (660-675, 984): Guamanian (660, 984)
                        Variable: [EUZ022] Asian or Pacific Islander (600-699, 976-985): Pacific Islander (653-699, 978, 983, 984): Micronesian (660-675, 984): Other Micronesian (661-675)
                        Variable: [EUZ023] Asian or Pacific Islander (600-699, 976-985): Pacific Islander (653-699, 978, 983, 984): Micronesian (660-675, 984): Melanesian (676-680)
                        Variable: [EUZ024] Asian or Pacific Islander (600-699, 976-985): Pacific Islander (653-699, 978, 983, 984): Micronesian (660-675, 984): Pacific Islander, not specified (681-699)
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP007A. Population by Race
                    Universe: Persons
                        Variable: [FYE005] Native Hawaiian and Other Pacific Islander alone
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P3. Race
                    Universe: Total population
                        Variable: [H7X006] Native Hawaiian and Other Pacific Islander alone
 
    Time series AF: Persons: Some Other Race (single race)
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP6. Race
                    Universe: Persons
                        Variable: [EUY005] Other race
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP007A. Population by Race
                    Universe: Persons
                        Variable: [FYE006] Some other race alone
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P3. Race
                    Universe: Total population
                        Variable: [H7X007] Some Other Race alone
 
    Time series AG: Persons: Two or More Races
        Year: 1990
            *NOT AVAILABLE for this time*
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP007A. Population by Race
                    Universe: Persons
                        Variable: [FYE007] Two or more races
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P3. Race
                    Universe: Total population
                        Variable: [H7X008] Two or More Races
 
 
Table 5: (CR0) Persons Under 18 Years in Households
 
    Time series AA: Persons: In households ~ Under 18 years
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP21. Household Type and Relationship
                    Universe: Persons Under 18 Years of Age
                        Variable: [EUF001] In households: Householder or spouse
                        Variable: [EUF002] In households: Own child: In married-couple family
                        Variable: [EUF003] In households: Own child: In other family: Male householder, no wife present
                        Variable: [EUF004] In households: Own child: In other family: Female householder, no husband present
                        Variable: [EUF005] In households: Other relatives
                        Variable: [EUF006] In households: Nonrelatives
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP028B. Population Under 18 Years by Residence Type
                    Universe: Persons Under 18 Years of Age
                        Variable: [F1E001] Households
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P16. Population in Households by Age
                    Universe: Population in households
                        Variable: [H8A002] Under 18 years
 
 
Table 6: (CR2) Persons 65 Years and Over in Households
 
    Time series AA: Persons: In households ~ 65 years and over
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP23. Household Type and Relationship
                    Universe: Persons 65 Years and Over
                        Variable: [EUH001] In family households: Householder
                        Variable: [EUH002] In family households: Spouse
                        Variable: [EUH003] In family households: Other relatives
                        Variable: [EUH004] In family households: Nonrelatives
                        Variable: [EUH005] In nonfamily households: Male householder: Living alone
                        Variable: [EUH006] In nonfamily households: Male householder: Not living alone
                        Variable: [EUH007] In nonfamily households: Female householder: Living alone
                        Variable: [EUH008] In nonfamily households: Female householder: Not living alone
                        Variable: [EUH009] In nonfamily households: Nonrelatives
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP030B. Population 65 Years and Over by Residence Type
                    Universe: Persons 65 Years and Over
                        Variable: [F16001] Households
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P34. Household Type by Relationship for the Population 65 Years and Over
                    Universe: Population 65 years and over
                        Variable: [H8S002] In households
 
 
Table 7: (CM4) Total Households
 
    Time series AA: Households: Total
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP3. Households
                    Universe: Households
                        Variable: [EUO001] Total
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP015A. Total Households
                    Universe: Households
                        Variable: [FY4001] Total
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P18. Household Type
                    Universe: Households
                        Variable: [H8C001] Total
 
 
Table 8: (CM5) Total Families
 
    Time series AA: Families: Total
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NP2. Families
                    Universe: Families
                        Variable: [EUD001] Total
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NP031A. Total Families
                    Universe: Families
                        Variable: [F2V001] Total
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: P35. Families
                    Universe: Families
                        Variable: [H8T001] Total
 
 
Table 9: (CM7) Total Housing Units
 
    Time series AA: Housing units: Total
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NH1. Housing Units
                    Universe: Housing units
                        Variable: [ESA001] Total
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NH001A. Total Housing Units
                    Universe: Housing Units
                        Variable: [FV5001] Total
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: H1. Housing Units
                    Universe: Housing units
                        Variable: [IFC001] Total
 
 
Table 10: (CM8) Housing Units by Urban/Rural Status [4]
 
    Time series AA: Housing units: Urban
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NH4. Urban and Rural
                    Universe: Housing units
                        Variable: [ETF001] Urban: Inside urbanized area
                        Variable: [ETF002] Urban: Outside urbanized area
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NH002A. Housing Units by Urban and Rural
                    Universe: Housing Units
                        Variable: [FV6001] Urban
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: H2. Urban and Rural
                    Universe: Housing units
                        Variable: [IFD002] Urban
 
    Time series AB: Housing units: Urban--Inside urbanized areas
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NH4. Urban and Rural
                    Universe: Housing units
                        Variable: [ETF001] Urban: Inside urbanized area
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NH002B. Urban Housing Units by Type of Urban Area
                    Universe: Urban Housing Units
                        Variable: [FV7001] Inside urbanized areas
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: H2. Urban and Rural
                    Universe: Housing units
                        Variable: [IFD003] Urban: Inside urbanized areas
 
    Time series AC: Housing units: Urban--Outside urbanized areas (in urban clusters)
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NH4. Urban and Rural
                    Universe: Housing units
                        Variable: [ETF002] Urban: Outside urbanized area
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NH002B. Urban Housing Units by Type of Urban Area
                    Universe: Urban Housing Units
                        Variable: [FV7002] Inside urban clusters
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: H2. Urban and Rural
                    Universe: Housing units
                        Variable: [IFD004] Urban: Inside urban clusters
 
    Time series AD: Housing units: Rural
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NH4. Urban and Rural
                    Universe: Housing units
                        Variable: [ETF003] Rural
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NH002A. Housing Units by Urban and Rural
                    Universe: Housing Units
                        Variable: [FV6002] Rural
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: H2. Urban and Rural
                    Universe: Housing units
                        Variable: [IFD005] Rural
 
 
Table 11: (CM9) Housing Units by Occupancy Status [2]
 
    Time series AA: Housing units: Occupied
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NH2. Occupancy Status
                    Universe: Housing units
                        Variable: [ESN001] Occupied
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NH003A. Housing Units by Occupancy Status
                    Universe: Housing Units
                        Variable: [FV8001] Occupied
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: H3. Occupancy Status
                    Universe: Housing units
                        Variable: [IFE002] Occupied
 
    Time series AB: Housing units: Vacant
        Year: 1990
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 1990 Census: STF 1 - 100% Data
                Source table: NH2. Occupancy Status
                    Universe: Housing units
                        Variable: [ESN002] Vacant
        Year: 2000
            Source geographic level: Block (by State--County--Tract)
            Source dataset: 2000 Census: SF 1b - 100% Data [Blocks & Block Groups]
                Source table: NH003A. Housing Units by Occupancy Status
                    Universe: Housing Units
                        Variable: [FV8002] Vacant
        Year: 2010
            Source geographic level: 5-Digit ZIP Code Tabulation Area
            Source dataset: 2010 Census: SF 1a - P & H Tables [Blocks & Larger Areas]
                Source table: H3. Occupancy Status
                    Universe: Housing units
                        Variable: [IFE003] Vacant
 
--------------------------------------------------------------------------------
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        IPUMS National Historical Geographic Information System: Version 15.0 
        [dataset]. Minneapolis, MN: IPUMS. 2020. 
        http://doi.org/10.18128/D050.V15.0

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